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PurgMagPrimaryGeneratorAction.cc
Go to the documentation of this file. Or view the newest version in sPHENIX GitHub for file PurgMagPrimaryGeneratorAction.cc
1 //
2 // ********************************************************************
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4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
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9 // * include a list of copyright holders. *
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15 // * use. Please see the license in the file LICENSE and URL above *
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18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
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24 // ********************************************************************
25 //
26 // Code developed by:
27 // S.Larsson
28 //
29 // ********************************************
30 // * *
31 // * PurgMagPrimaryGeneratorAction.cc *
32 // * *
33 // ********************************************
34 //
35 //
36 
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38 
40 
42 
43 #include "G4SystemOfUnits.hh"
44 #include "G4UnitsTable.hh"
45 #include "G4Event.hh"
46 #include "G4ParticleGun.hh"
47 #include "G4ParticleTable.hh"
48 #include "G4ParticleDefinition.hh"
49 #include "G4Electron.hh"
50 
51 
52 //Print position of primaries.
53 #define POSITION 0
54 
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56 
58  :rndmVertex(false)
59 {
60  //default kinematic
61  G4int n_particle = 1;
62  particleGun = new G4ParticleGun(n_particle);
63 
66 
69 
70  //Momentum Direction
72 
73 }
74 
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76 
78 {
79  delete particleGun;
80  }
81 
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83 
85 {
86  //this function is called at the begining of event
87  //Start position of primaries
88  G4double z0 = 15.*cm;
89  G4double x0 = 0.*cm;
90  G4double y0 = 0.*cm;
93 
94 #if POSITION
95  G4cout << "\n----Particle Gun--------------------------------------------\n";
96  G4cout << "\n ---> SetParticlePosition(G4ThreeVector(x0,y0,z0)) ";
97  G4cout << "\n ---> x0 = " << x0 << " "<< G4BestUnit(x0,"Length");
98  G4cout << "\n ---> y0 = " << y0 << " "<< G4BestUnit(y0,"Length");
99  G4cout << "\n ---> z0 = " << z0 << " "<< G4BestUnit(z0,"Length");
100  G4cout << "\n-----------------------------------------------------------\n";
101 #endif
102 }
103 
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106